pom.xml

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<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>config.file.test</groupId>
    <artifactId>available</artifactId>
    <packaging>jar</packaging>
    <version>1.0.0-SNAPSHOT</version>
    <name>ConfigFile</name>
    <url>https://openapi-generator.tech/</url>
    <build>
        <finalName>configuration file test</finalName>
        <plugins>
            <plugin>
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <configuration>
                    <configurationFile>${basedir}/config.yaml</configurationFile>
                    <skipIfConfigurationFileMissing>true</skipIfConfigurationFileMissing>
                </configuration>
                <executions>
                    <execution>
                        <id>executionId</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>